How long will a battery backup sump pump run?

Asked By: Jasper Kreidenweis | Last Updated: 28th June, 2020
Category: home and garden home appliances
4.5/5 (86 Views . 17 Votes)
That depends on how much water is entering your sump basket (which determines how often the pump will run). Here's an example: one manufacturer's system comes with a 40-amp/hour battery that's projected to last up to 53 hours (pumping at the rate of 2,300 GPH once every five minutes).

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People also ask, how long will a 12v battery run a sump pump?

A 100 amp-hour AGM deep-cycle battery can continuously run a 600-watt sump pump motor for 1 hour and 20 minutes, an 800-watt sump pump for 1 hour, or a 1,000-watt sump pump for 45 minutes until fully discharged.

Furthermore, can you add battery backup to existing sump pump? Battery backup for an existing sump pump Now it is possible to add a battery backup system to your existing sump pump. You plug the sump pump into the battery backup unit, then permanently wire battery cables from your battery into the unit, which provides a trickle charge to the battery.

In this way, is a battery backup sump pump worth it?

Power outages can happen during strong storms, taking out the sump pump. If you have these situations a few times a year or even once a year, a battery backup will be worth the investment. This will eliminate the cost of repairs, water removal and other issues that come with flood damage.

How often replace backup sump pump battery?

Maintenance: It's pretty easy work, but having a sump pump battery backup, means one more thing to attend to. You'll have to add fluids to batteries that require it and replace sump pump batteries every 4-5 years.

33 Related Question Answers Found

How often should sump pump run during rain?

There's a delay after rain starts before the standup area gets enough water in it for the pump to run. Then it runs as often as every eight minutes or so. It will keep running after the rain stops, as the ground keeps releasing water into the standup area.

What size inverter do I need to run a sump pump?

For higher capacity pumps like a 1/2 hp sump pump you should use AIMS Power 3000 watt power inverter with charger and built-in transfer switch. The sump pump is first connected to the power inverter.

Can I use a marine battery for sump pump?

As long as the battery supplies the correct voltage and amperage, yes, you can use it. A deep cycle marine battery is a reasonable compromise between the dedicated sump battery and a light discharge car battery. If the battery sump runs often and hard, buy the manufacturer recommended battery.

Can you put 2 sump pumps in pit?

You could set both sump pumps at the bottom of your sump pit basin, but that would mean that both pumps would run at the same time. So, by installing the 2nd sump pump slightly higher, or on top of the primary pump, they won't be working in tandem.

How many amps does it take to run a sump pump?


For one motor like a sump pump, it is 125% and then next standard breaker. 1/2 hp= 8 amps *1.25= 10 amps, minimum circuit would be 14 and fused at 15.

How many watts do I need to run a sump pump?

Pumps and Air Conditioners Estimated Watts
* Well Pump 1/2 hp 1000 (Running) 2100-4000 (Starting)
* Sump Pump 1/3 hp 800 (Running) 1300-2900 (Starting)
* Sump Pump 1/2 hp 1050 (Running) 2150-4100 (Starting)
* Air Conditioner (7000 BTU to 10,000 BTU) 1000-1500 (Running) 2200-5000 (Starting)

How long will a watchdog battery last?

BATTERY COMPARISON CHART
Big Standby Battery Maintenance Free/ AGM Battery**
BATTERY BACKUP SYSTEM RUN TIME*
Big Dog Connect 50 hours 40 hours
Special Connect 60 hours 48 hours
Emergency 100 hours 80 hours

What is the best sump pump on the market?

The 10 Best Sump Pumps
  1. WAYNE CDU980E Sump Pump – Best Overall.
  2. Superior 91250 Sump Pump – Best Value.
  3. Wayne WSS30VN Sump Pump – Best Battery Back-Up.
  4. Liberty 1/3 HP Submersible Sump Pump.
  5. WaterAce Pedestal Sump Pump.
  6. Zoeller M53 Submersible Sump Pump.
  7. WAYNE WaterBUG Sump-Pump.
  8. DEKO Submersible Sump Pump.

How often should sump pump run after heavy rain?


Our sump pump after a heavy rain will run every 30 seconds and run for about 3 days until it finally stops.

How much does a Sump Pump Battery Backup cost?

Sump Pump Battery Backup Cost
A good sump pump backup system can cost $150–$500.

How often should I replace my sump pump?

Most pumps should be replaced every five years or according to the manufacturer's suggestion. The float and activation switch for the sump may need to be replaced more frequently than the pump. Meanwhile, the sump, the switch, and the float should be inspected yearly.

Can a 2000 watt generator run a sump pump?

The typical electric range with 8” elements will use all 2000 watts if you use it while connected to the generator. A 2000 watt generator could start up the sump pump and then keep it running during a storm, and once running and drawing 800 watts, you could use the same generator to power the 1000 watt water well pump.

Do sump pumps run in winter?

Firstly, it is important to note that it is normal for sump pumps to run occasionally during the winter as a bit of melted snow will accumulate in the sump pit over time. A sump pump which engages for long periods of time but isn't able to remove moisture from the sump pit can overheat or even burn out.

Who makes the best battery backup sump pump?

5 Best Battery Backup Sump Pumps – Reviews 2020:
  1. WAYNE Pre-Assembled Battery-Backup Sump Pump – Top Pick.
  2. Zoeller Aquanot Preassembled Battery Backup Sump-Pump – The Runner-Up.
  3. WAYNE ESP15 Battery-Backup Sump Pump – Best for the Money.
  4. Superior Pump 92900 Battery Backup Sump Pump.

What happens to sump pump when power goes out?

Sump pumps can fail and in those instances, a battery backup sump pump can be a basement-saver. When the house loses power, the sump pump also loses power. Weather events that that trigger power outages also often lead to water in the basement (rainwater, melting snow), leaving a homeowner vulnerable to water damage.